This report is the result of a project initiated in 2001 by the City of Nashua Department of Public Works, Pennichuck Water Works and the New Hampshire Department of Environmental Services (DES). The purpose of the project was to develop updates to the street and drainage specifications for the City of Nashua to address stormwater quality and quantity issues. These stormwater issues are closely related to transportation functions including roadways and parking lots and the idea was to develop a more environmentally friendly engineering and planning specification for use in the City. The project was to be a model for other Pennichuck watershed communities (Amherst, Hollis, Merrimack, and Milford), and the rest of the state.